20802550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13421}}^1$

素因数の和:13464

約数の個数: 24

約数和(自身を含む): 39943872

約数和(自身を除く): 19141322

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13421, 26842, 67105, 134210, 335525, 416051, 671050, 832102, 2080255, 4160510, 10401275, 20802550]

約数ペア:

[(1, 20802550), (2, 10401275), (5, 4160510), (10, 2080255), (25, 832102), (31, 671050), (50, 416051), (62, 335525), (155, 134210), (310, 67105), (775, 26842), (1550, 13421)]